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Nuevo Mercurio (d)
Basic information Name: Nuevo Mercurio (d)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1982
Country: Mexico
Mass:help 138.6 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L6
Recommended:  L6    [explanation]

This is 1 of 11325 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 27 Aug 2016
Writeuphelp
Writeup from MB 105:

Nuevo Mercurio (d)        ~24°27’N, ~102°8’W

Zacatecas, Mexico

Purchased: 1982

Classification: Ordinary chondrite (L6)

History: Purchased by a Mexican opal dealer from a local farmer in 1982, as part of a lot of Nuevo Mercurio stones. The meteorite was identified as distinct from the H chondrite fall by its lower magnetic susceptibility.

Physical characteristics: One stone of 138.6 g covered by 30% fusion crust. The stone is weakly coated by iron hydroxides. Cut face shows light-gray interior with fresh metal specks and black shock veins.

Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows strong recrystallized and strong shocked matrix (mosaicism and PDFs in olivine, maskelynite). Chondrules poorly preserved.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa25.0±0.3 (n=13); pyroxene Fs21.2±0.5Wo1.8±0.2 (n=18). Kamacite Ni=5.3-7.1, Co=1.0-1.1 wt.-%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.94.

Classification: Ordinary chondrite (L6)

Specimens: 21.4 g on deposit at Kiel, main mass Bart.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Zacatecas
Place of purchase:Mexico
Date:P 1982
Latitude:~24°27'N
Longitude:~102°8'W
Mass (g):138.6
Pieces:1
Class:L6
Shock stage:S5
Weathering grade:W1
Fayalite (mol%):25.0±0.3 (n=13)
Ferrosilite (mol%):21.2±0.5 (n=18)
Wollastonite (mol%):1.8±0.2
Magnetic suscept.:4.94
Classifier:Bart
Type spec mass (g):21.4
Type spec location:Kiel
Main mass:Bart
Finder:anonymous
Comments:Submitted by R. Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:

Mexico
Coordinates:
     Recommended::   (24° 27'N, 102° 8'W)

Statistics:
     This is 1 of 14 approved meteorites from Zacatecas, Mexico
     This is 1 of 112 approved meteorites from Mexico (plus 4 unapproved names) (plus 1 impact crater)
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